CVE-2026-20657

A buffer overflow issue was addressed with improved memory handling

Medium · published March 25, 2026

CVSS v3.1
6.5
EPSS
1%
Percentile
45.9
In the wild
Unconfirmed
What it is

A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4, visionOS 26.4. Parsing a maliciously crafted file may lead to an unexpected app termination.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00562 · 45.9th percentile
Published
2026-03-25T00:31Z
EPSS history
Timeline
  • 25 MAR 00:31Z
    A buffer overflow issue was addressed with improved memory handling
    cvelistv5